US20050165359A1 - Device for subcutaneous infusion of fluids - Google Patents
Device for subcutaneous infusion of fluids Download PDFInfo
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- US20050165359A1 US20050165359A1 US10/763,510 US76351004A US2005165359A1 US 20050165359 A1 US20050165359 A1 US 20050165359A1 US 76351004 A US76351004 A US 76351004A US 2005165359 A1 US2005165359 A1 US 2005165359A1
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- needles
- support base
- delivery tube
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- flexible
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M35/00—Devices for applying media, e.g. remedies, on the human body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
- A61M2005/1581—Right-angle needle-type devices
Definitions
- the technical field of this disclosure is medical devices, particularly for hydrating patients.
- Hypodermoclysis is a method of providing fluids to a patient that does not involve use of the intravenous or oral approaches. While often contraindicated for patients in severe dehydration, hypodermoclysis may be beneficial for palliative care, and may further be beneficial to a geriatric population. Hypodermoclysis is, in certain circumstances, less invasive than intravenous methods, and performance requires less skill than intravenous hydration.
- hypodermoclysis is the fluid flow rates possible. Because fluids do not disperse subcutaneously as quickly as in the vasculature, insertion sites are known to exhibit side effects including “camel humps” formed by fluid accumulation at the insertion site if the dispersion rate of the fluid in the subcutaneous tissue is less than the flow rate into the subcutaneous space. Thus, for a dehydrated patient, the hydration effects of hypodermoclysis treatment may be delayed as compared to intravenous treatment but the long-term results may be similar.
- Wojcik in U.S. Pat. No. 6,572,586 discloses a low profile infusion set including a needle housing connected to a cannula housing.
- the needle housing has a pair of flexible sidewalls and a resilient band lockably engaged with the cannula.
- use of the Wojcik device is difficult due to angled insertion, and obtaining a desired fluid flow rate may require use of multiple devices.
- Mann discloses a similar device in U.S. Pat. No. 6,254,586.
- the Mann device is relatively complex and provides a needle in communication with a cannula in the body of a base. Mann uses a sensor mounted at a skin site and directly monitors fluid flow.
- Kriesel, U.S. Pat. No. 5,858,005 discloses a device with similar fluid flow disadvantages, and is also relatively complex to manufacture.
- Livingston discloses a spring loaded subcutaneous injection set in U.S. Pat. No. 5,584,813. However, the Livingston device inserts a cannula into the subcutaneous layer, which may be undesirable. Further, the Livingston device also suffers from the same fluid flow disadvantages.
- Van Antwerp discloses a subcutaneous injection set with a crimp-free soft cannula in U.S. Pat. No. 5,257,980.
- the Van Antwerp device inserts a cannula into the subcutaneous layer, and also has the same fluid flow limitations.
- Bartholomew discloses a subcutaneous injection set with improved cannula mounting arrangement in U.S. Pat. No. 5,176,662.
- the Bartholomew device has many of the same fluid flow disadvantages, and further includes a complex apparatus that inserts a cannula into the subcutaneous space.
- Quick discloses a needle device for use with subcutaneous catheter assemblies at U.S. Pat. No. 4,710,176.
- the Quick device comprises a needle inserted perpendicular to the skin, but has similar fluid flow limitations. Furthermore, the Quick device is relatively complex.
- Kamen discloses a relatively simple infusion needle attachment in U.S. Pat. No. 4,380,234.
- the Kamen device maintains the fluid flow disadvantages, and is difficult to insert due to the angled approach.
- Feller Jr. discloses an intravenous infusion assembly in U.S. Pat. No. 4,362,156.
- the Feller Jr. patent discloses an intravenous, rather than subcutaneous, device that is angularly delivered to the delivery site.
- McFarlane discloses a relatively simple securing device for catheter placement assemblies in U.S. Pat. No. 4,129,128.
- the McFarlane device includes a catheter assembly, and two wings joined by a body that includes an arch configured to press a catheter into the skin surface.
- One embodiment of the invention provides a subcutaneous infusion device.
- the device includes a delivery tube including a central lumen, a closed first end and an open second end.
- the delivery tube is attached to a support base adjacent a first end of the delivery tube.
- a plurality of needles extend substantially perpendicular to the support base and in communication with the central lumen of the delivery tube.
- Another embodiment of the invention provides a method for hydrating a patient.
- the method includes pressing a support base against a skin surface of the patient and inserting a plurality of needles into a subcutaneous skin layer responsive to the pressing.
- a saline fluid is delivered to the subcutaneous skin layer through the needles via a delivery tube.
- Yet another embodiment of the invention provides a method for treating a skin ulcer.
- the method includes pressing a support base against a skin surface of the patient and inserting a plurality of needles into a subcutaneous skin layer responsive to the pressing.
- a saline fluid is delivered to the subcutaneous skin layer through the needles via a delivery tube.
- FIG. 1 illustrates a perspective view of one embodiment of a device used in accordance with the present invention
- FIG. 2 illustrates a side view of the device illustrated in FIG. 1 in a deployed position
- FIG. 3 illustrates a top view of the device illustrated in FIG. 1 in accordance with another aspect of the invention
- FIG. 4 illustrates a side view of a device comprising more than 2 needles, in accordance with another embodiment of the invention.
- FIG. 5 illustrates a top view of a device comprising more than 2 needles, in accordance with another embodiment of the invention.
- FIG. 6 illustrates a top view of a device comprising more than 2 needles, in accordance with another embodiment of the invention.
- FIG. 7 illustrates a top view of a device comprising more than 2 needles, in accordance with another embodiment of the invention.
- FIG. 8 illustrates a flowchart depicting one embodiment of a method for hydrating a patient in accordance with one embodiment of the invention.
- FIG. 1 illustrates a perspective view of a device for subcutaneous infusion of fluids in accordance with one aspect of the present invention.
- the device 100 includes a delivery tube 150 , a support base 175 , and a plurality of needles, 110 , 120 .
- the delivery tube includes a central lumen 105 , a closed first end 130 and an open second end 140 .
- Support base 175 includes an application side 136 and a side opposite 146 the application side.
- Delivery tube 150 in one embodiment, is a cannula. In another embodiment, delivery tube 150 is a catheter. In another embodiment, delivery tube 150 is any biomedically suitable delivery tube configured to deliver fluid to a delivery site. In one embodiment, delivery tube 150 is affixed to an opposite side 146 opposite the application side 136 . Lumen 105 is configured for fluidic communication with a fluid source (not shown) through the open first end 140 . The delivery tube 150 may be fixedly attached 145 to the opposite side 146 , or the delivery tube may be integral with the opposite side 146 . In one embodiment, the delivery tube 150 is adhesively affixed to the opposite side 146 .
- Support base 175 is configured to provide support for the device 100 against a skin surface.
- FIG. 1 illustrates support base 175 configured in a generally rectangular shape.
- support base 175 is configured to be substantially circular.
- support base 175 is configured as a triangle or other polygon.
- support base 175 comprises vinyl, although any biomedically suitable substance may be used.
- the support base 175 is a flexible support, while in another embodiment, the support base 175 is substantially rigid. In another embodiment, support base 175 is substantially planar.
- the open second end 140 comprises a female luer fitting.
- the luer fitting includes a luer fitting cap.
- the open second end 140 is configured to be connected to a fluid source (not shown), such as an IV bag, to supply fluid to the needles.
- the fluid is a saline fluid.
- the fluid is therapeutic and includes pharmaceutical compounds intended to have a beneficial therapeutic effect on a patient.
- Needles 110 include a lumen 112 .
- Lumen 112 is in fluidic communication with lumen 105 at a communication end 118 of the needle 110 .
- Communication end 118 is disposed within the lumen 105 .
- Needle 110 further includes a second open end disposed external to lumen 105 . The second open end is configured to penetrate skin and deliver a fluid from the lumen 105 into the subcutaneous space.
- the communication end 118 is flush with the inner surface of the lumen 105 .
- the communication end 118 is disposed within the lumen 105 .
- needle 110 is angled within the lumen 105 and the communication end 118 is disposed within the lumen 105 .
- Needles 110 may be sized based on treatment requirements. In one embodiment, needles 110 are 27 gauge needles, 6 millimeters long. In another embodiment, needles 110 are configured to provide a fluid flow rate of substantially 120 to 200 cc/hr. In another embodiment, needles 110 are configured to provide a flow rate of substantially 80 cc/hr.
- device 100 includes an adhesive 135 disposed upon the application side 136 .
- the adhesive 135 is any appropriate, biomedically compatible adhesive.
- Adhesive 135 is disposed upon the entirety of the application side 136 , in one embodiment. In another embodiment, adhesive 135 is disposed upon only a predetermined portion of the application side 136 .
- FIG. 1 further illustrates the device 100 adjacent a skin surface 195 . Also illustrated is a subcutaneous skin layer 198 .
- FIG. 2 illustrates a side view of the device illustrated in FIG. 1 at 200 .
- Like numbers in FIG. 2 illustrate like structures of FIG. 1 .
- FIG. 3 illustrates a side view of the device illustrated in FIG. 1 at 300 .
- Like numbers in FIG. 3 illustrate like structures of FIG. 1 .
- FIG. 4 illustrates a side view of one embodiment of a device 400 in accordance with another aspect of the invention.
- the device 400 is similar to the device 100 and includes additional needles 410 .
- Device 100 includes two needles 110 , while device 400 includes 6 needles 410 .
- a device in accordance with the invention can include any number of, but at least two, needles.
- Device 400 includes luer lock 440 , delivery tube 450 and support base 475 .
- needles 410 are configured in series.
- FIG. 5 illustrates a top view of the device illustrated in FIG. 4 in accordance with one aspect of the invention.
- FIG. 6 illustrates a device 600 for hydrating patients in accordance with another aspect of the invention.
- Device 600 includes a substantially triangular support base 675 and a plurality of needles 610 .
- needles 610 are configured in parallel.
- needles 610 are configured in series.
- Device 600 includes luer lock 640 and delivery tube 650 and other structures similar to the device 100 .
- FIG. 7 illustrates a device 700 for hydrating patients in accordance with another aspect of the invention.
- Device 700 includes a substantially circular support base 775 and a plurality of needles 710 .
- needles 710 are configured in parallel.
- needles 710 are configured in series.
- Device 700 includes luer lock 740 and delivery tube 750 and other structures similar to the device 100 .
- FIG. 8 is a flowchart illustrating one embodiment of a method 800 for hydrating a patient in accordance with another embodiment of the invention.
- Method 800 begins at block 810 by pressing a support base against a skin surface of the patient.
- the support base is a support base as illustrated in FIG. 1, 4 , 6 or 7 .
- Method 800 continues at block 820 by inserting a plurality of needles into a subcutaneous skin layer responsive to the pressing.
- the skin layer is in a fleshy area, such as, for example, an upper arm or thigh.
- the skin layer is adjacent a skin ulcer.
- Method 800 continues at block 830 by delivering a fluid to the subcutaneous skin layer through the needles via a delivery tube.
- the fluid is a saline fluid.
- the fluid is therapeutic and includes pharmaceutical compounds intended to have a beneficial therapeutic effect on a patient.
- needles configured in “parallel” have a common fluid source that divides to supply an individual needle, such as the embodiment illustrated in FIG. 6 .
- Needles configured in series have a single fluid source for multiple needles, such as the embodiment illustrated in FIG. 4 .
- Some embodiments of the invention may include needle configured in both series and parallel.
- Practice of this invention allows for hydration of patients without intravenous approaches. Practice may also provide another method to treat skin ulcers by hydrating the skin surrounding the ulcer. Application of a growth hormone, or any other fluidic treatment regime, using the invention may be indicated under certain circumstances. Further, use of a plurality of needles in a single device allows for a greater variety of fluid flow levels.
Abstract
Description
- The technical field of this disclosure is medical devices, particularly for hydrating patients.
- Hypodermoclysis is a method of providing fluids to a patient that does not involve use of the intravenous or oral approaches. While often contraindicated for patients in severe dehydration, hypodermoclysis may be beneficial for palliative care, and may further be beneficial to a geriatric population. Hypodermoclysis is, in certain circumstances, less invasive than intravenous methods, and performance requires less skill than intravenous hydration.
- One possible disadvantage of hypodermoclysis is the fluid flow rates possible. Because fluids do not disperse subcutaneously as quickly as in the vasculature, insertion sites are known to exhibit side effects including “camel humps” formed by fluid accumulation at the insertion site if the dispersion rate of the fluid in the subcutaneous tissue is less than the flow rate into the subcutaneous space. Thus, for a dehydrated patient, the hydration effects of hypodermoclysis treatment may be delayed as compared to intravenous treatment but the long-term results may be similar.
- A variety of devices for non-intravenous hydration and therapeutic substance administration have been proposed. Wojcik, in U.S. Pat. No. 6,572,586 discloses a low profile infusion set including a needle housing connected to a cannula housing. The needle housing has a pair of flexible sidewalls and a resilient band lockably engaged with the cannula. However, use of the Wojcik device is difficult due to angled insertion, and obtaining a desired fluid flow rate may require use of multiple devices. Mann discloses a similar device in U.S. Pat. No. 6,254,586. The Mann device is relatively complex and provides a needle in communication with a cannula in the body of a base. Mann uses a sensor mounted at a skin site and directly monitors fluid flow.
- Kriesel, U.S. Pat. No. 5,858,005, discloses a device with similar fluid flow disadvantages, and is also relatively complex to manufacture. Livingston discloses a spring loaded subcutaneous injection set in U.S. Pat. No. 5,584,813. However, the Livingston device inserts a cannula into the subcutaneous layer, which may be undesirable. Further, the Livingston device also suffers from the same fluid flow disadvantages.
- Van Antwerp discloses a subcutaneous injection set with a crimp-free soft cannula in U.S. Pat. No. 5,257,980. The Van Antwerp device inserts a cannula into the subcutaneous layer, and also has the same fluid flow limitations. Bartholomew discloses a subcutaneous injection set with improved cannula mounting arrangement in U.S. Pat. No. 5,176,662. The Bartholomew device has many of the same fluid flow disadvantages, and further includes a complex apparatus that inserts a cannula into the subcutaneous space. Quick discloses a needle device for use with subcutaneous catheter assemblies at U.S. Pat. No. 4,710,176. The Quick device comprises a needle inserted perpendicular to the skin, but has similar fluid flow limitations. Furthermore, the Quick device is relatively complex.
- Kamen discloses a relatively simple infusion needle attachment in U.S. Pat. No. 4,380,234. However, the Kamen device maintains the fluid flow disadvantages, and is difficult to insert due to the angled approach. While not as simple as the Kamen device, Feller Jr. discloses an intravenous infusion assembly in U.S. Pat. No. 4,362,156. However, the Feller Jr. patent discloses an intravenous, rather than subcutaneous, device that is angularly delivered to the delivery site.
- McFarlane discloses a relatively simple securing device for catheter placement assemblies in U.S. Pat. No. 4,129,128. The McFarlane device includes a catheter assembly, and two wings joined by a body that includes an arch configured to press a catheter into the skin surface.
- It would be desirable therefore to provide an apparatus and method that overcomes these, and other, problems.
- One embodiment of the invention provides a subcutaneous infusion device. The device includes a delivery tube including a central lumen, a closed first end and an open second end. The delivery tube is attached to a support base adjacent a first end of the delivery tube. A plurality of needles extend substantially perpendicular to the support base and in communication with the central lumen of the delivery tube.
- Another embodiment of the invention provides a method for hydrating a patient. The method includes pressing a support base against a skin surface of the patient and inserting a plurality of needles into a subcutaneous skin layer responsive to the pressing. A saline fluid is delivered to the subcutaneous skin layer through the needles via a delivery tube.
- Yet another embodiment of the invention provides a method for treating a skin ulcer. The method includes pressing a support base against a skin surface of the patient and inserting a plurality of needles into a subcutaneous skin layer responsive to the pressing. A saline fluid is delivered to the subcutaneous skin layer through the needles via a delivery tube.
- The present invention is illustrated by the accompanying drawings of various embodiments and the detailed description given below. The drawings should not be taken to limit the invention to the specific embodiments, but are for explanation and understanding. The detailed description and drawings are merely illustrative of the invention rather than limiting, the scope of the invention being defined by the appended claims and equivalents thereof. The foregoing aspects and other attendant advantages of the present invention will become more readily appreciated by the detailed description taken in conjunction with the accompanying drawings.
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FIG. 1 illustrates a perspective view of one embodiment of a device used in accordance with the present invention; -
FIG. 2 illustrates a side view of the device illustrated inFIG. 1 in a deployed position; -
FIG. 3 illustrates a top view of the device illustrated inFIG. 1 in accordance with another aspect of the invention; -
FIG. 4 illustrates a side view of a device comprising more than 2 needles, in accordance with another embodiment of the invention; -
FIG. 5 illustrates a top view of a device comprising more than 2 needles, in accordance with another embodiment of the invention; -
FIG. 6 illustrates a top view of a device comprising more than 2 needles, in accordance with another embodiment of the invention; -
FIG. 7 illustrates a top view of a device comprising more than 2 needles, in accordance with another embodiment of the invention; and -
FIG. 8 illustrates a flowchart depicting one embodiment of a method for hydrating a patient in accordance with one embodiment of the invention. -
FIG. 1 illustrates a perspective view of a device for subcutaneous infusion of fluids in accordance with one aspect of the present invention. Thedevice 100 includes adelivery tube 150, asupport base 175, and a plurality of needles, 110, 120. The delivery tube includes acentral lumen 105, a closedfirst end 130 and an opensecond end 140.Support base 175 includes anapplication side 136 and a side opposite 146 the application side. -
Delivery tube 150, in one embodiment, is a cannula. In another embodiment,delivery tube 150 is a catheter. In another embodiment,delivery tube 150 is any biomedically suitable delivery tube configured to deliver fluid to a delivery site. In one embodiment,delivery tube 150 is affixed to anopposite side 146 opposite theapplication side 136.Lumen 105 is configured for fluidic communication with a fluid source (not shown) through the openfirst end 140. Thedelivery tube 150 may be fixedly attached 145 to theopposite side 146, or the delivery tube may be integral with theopposite side 146. In one embodiment, thedelivery tube 150 is adhesively affixed to theopposite side 146. -
Support base 175 is configured to provide support for thedevice 100 against a skin surface.FIG. 1 illustratessupport base 175 configured in a generally rectangular shape. In another embodiment,support base 175 is configured to be substantially circular. In another embodiment,support base 175 is configured as a triangle or other polygon. In one embodiment,support base 175 comprises vinyl, although any biomedically suitable substance may be used. In one embodiment, thesupport base 175 is a flexible support, while in another embodiment, thesupport base 175 is substantially rigid. In another embodiment,support base 175 is substantially planar. - In one embodiment, the open
second end 140 comprises a female luer fitting. In another embodiment, the luer fitting includes a luer fitting cap. The opensecond end 140 is configured to be connected to a fluid source (not shown), such as an IV bag, to supply fluid to the needles. In one embodiment, the fluid is a saline fluid. In another embodiment, the fluid is therapeutic and includes pharmaceutical compounds intended to have a beneficial therapeutic effect on a patient. -
Needles 110 include alumen 112.Lumen 112 is in fluidic communication withlumen 105 at acommunication end 118 of theneedle 110.Communication end 118 is disposed within thelumen 105.Needle 110 further includes a second open end disposed external tolumen 105. The second open end is configured to penetrate skin and deliver a fluid from thelumen 105 into the subcutaneous space. In one embodiment, thecommunication end 118 is flush with the inner surface of thelumen 105. In another embodiment, thecommunication end 118 is disposed within thelumen 105. In yet another embodiment,needle 110 is angled within thelumen 105 and thecommunication end 118 is disposed within thelumen 105. -
Needles 110 may be sized based on treatment requirements. In one embodiment, needles 110 are 27 gauge needles, 6 millimeters long. In another embodiment, needles 110 are configured to provide a fluid flow rate of substantially 120 to 200 cc/hr. In another embodiment, needles 110 are configured to provide a flow rate of substantially 80 cc/hr. - In one embodiment,
device 100 includes an adhesive 135 disposed upon theapplication side 136. The adhesive 135 is any appropriate, biomedically compatible adhesive.Adhesive 135 is disposed upon the entirety of theapplication side 136, in one embodiment. In another embodiment, adhesive 135 is disposed upon only a predetermined portion of theapplication side 136. -
FIG. 1 further illustrates thedevice 100 adjacent askin surface 195. Also illustrated is asubcutaneous skin layer 198. -
FIG. 2 illustrates a side view of the device illustrated inFIG. 1 at 200. Like numbers inFIG. 2 illustrate like structures ofFIG. 1 . -
FIG. 3 illustrates a side view of the device illustrated inFIG. 1 at 300. Like numbers inFIG. 3 illustrate like structures ofFIG. 1 . -
FIG. 4 illustrates a side view of one embodiment of a device 400 in accordance with another aspect of the invention. The device 400 is similar to thedevice 100 and includesadditional needles 410.Device 100 includes twoneedles 110, while device 400 includes 6 needles 410. It will be immediately apparent that a device in accordance with the invention can include any number of, but at least two, needles. Device 400 includesluer lock 440,delivery tube 450 andsupport base 475. InFIG. 4 , needles 410 are configured in series. -
FIG. 5 illustrates a top view of the device illustrated inFIG. 4 in accordance with one aspect of the invention. -
FIG. 6 illustrates adevice 600 for hydrating patients in accordance with another aspect of the invention.Device 600 includes a substantiallytriangular support base 675 and a plurality ofneedles 610. In the embodiment illustrated inFIG. 6 , needles 610 are configured in parallel. In another embodiment, needles 610 are configured in series.Device 600 includesluer lock 640 anddelivery tube 650 and other structures similar to thedevice 100. -
FIG. 7 illustrates adevice 700 for hydrating patients in accordance with another aspect of the invention.Device 700 includes a substantiallycircular support base 775 and a plurality ofneedles 710. In the embodiment illustrated inFIG. 7 , needles 710 are configured in parallel. In another embodiment, needles 710 are configured in series.Device 700 includesluer lock 740 anddelivery tube 750 and other structures similar to thedevice 100. -
FIG. 8 is a flowchart illustrating one embodiment of amethod 800 for hydrating a patient in accordance with another embodiment of the invention.Method 800 begins atblock 810 by pressing a support base against a skin surface of the patient. In one embodiment, the support base is a support base as illustrated inFIG. 1, 4 , 6 or 7. -
Method 800 continues at block 820 by inserting a plurality of needles into a subcutaneous skin layer responsive to the pressing. In one embodiment, the skin layer is in a fleshy area, such as, for example, an upper arm or thigh. In another embodiment, the skin layer is adjacent a skin ulcer. -
Method 800 continues at block 830 by delivering a fluid to the subcutaneous skin layer through the needles via a delivery tube. In one embodiment, the fluid is a saline fluid. In another embodiment, the fluid is therapeutic and includes pharmaceutical compounds intended to have a beneficial therapeutic effect on a patient. - In this application, the terms “parallel” and “series” are ascribed a meaning similar to the meaning of those terms as applied in electronic circuits. Thus, needles configured in “parallel” have a common fluid source that divides to supply an individual needle, such as the embodiment illustrated in
FIG. 6 . Needles configured in series have a single fluid source for multiple needles, such as the embodiment illustrated inFIG. 4 . Some embodiments of the invention may include needle configured in both series and parallel. - Practice of this invention allows for hydration of patients without intravenous approaches. Practice may also provide another method to treat skin ulcers by hydrating the skin surrounding the ulcer. Application of a growth hormone, or any other fluidic treatment regime, using the invention may be indicated under certain circumstances. Further, use of a plurality of needles in a single device allows for a greater variety of fluid flow levels.
- Variations and alterations in the design, manufacture and use of the system and method are apparent to one skilled in the art, and may be made without departing from the spirit and scope of the present invention. While the embodiments of the invention disclosed herein are presently considered to be preferred, various changes and modifications can be made without departing from the spirit and scope of the invention. The scope of the invention is indicated in the appended claims, and all changes that come within the meaning and range of equivalents are intended to be embraced therein.
Claims (22)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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US10/763,510 US7150726B2 (en) | 2004-01-23 | 2004-01-23 | Device for subcutaneous infusion of fluids |
GB0614032A GB2427562B (en) | 2004-01-23 | 2005-01-21 | Device For Subcutaneous Infusion Of Fluids |
CA2553454A CA2553454C (en) | 2004-01-23 | 2005-01-21 | Device for subcutaneous infusion of fluids |
PCT/US2005/001842 WO2005072810A1 (en) | 2004-01-23 | 2005-01-21 | Device for subcutaneous infusion of fluids |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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US10/763,510 US7150726B2 (en) | 2004-01-23 | 2004-01-23 | Device for subcutaneous infusion of fluids |
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US20050165359A1 true US20050165359A1 (en) | 2005-07-28 |
US7150726B2 US7150726B2 (en) | 2006-12-19 |
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US10/763,510 Expired - Fee Related US7150726B2 (en) | 2004-01-23 | 2004-01-23 | Device for subcutaneous infusion of fluids |
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US (1) | US7150726B2 (en) |
CA (1) | CA2553454C (en) |
GB (1) | GB2427562B (en) |
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US20110238037A1 (en) * | 2010-03-19 | 2011-09-29 | Chorng-Fure Robin Hwang | Gas-pressured medication delivery device |
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SG11201706680SA (en) | 2015-03-10 | 2017-09-28 | Allergan Pharmaceuticals Holdings (Ireland) Unlimited Company | Multiple needle injector |
US9827369B2 (en) | 2016-03-16 | 2017-11-28 | Baxter International Inc. | Percutaneous administration device and method for injecting medicinal substances |
KR102232054B1 (en) | 2016-04-08 | 2021-03-26 | 알레간 인코포레이티드 | Suction and injection device |
USD867582S1 (en) | 2017-03-24 | 2019-11-19 | Allergan, Inc. | Syringe device |
TW202031305A (en) | 2018-12-25 | 2020-09-01 | 國立大學法人弘前大學 | Medicine administering device and medicine administering system |
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US20100130958A1 (en) * | 2008-11-26 | 2010-05-27 | David Kang | Device and Methods for Subcutaneous Delivery of High Viscosity Fluids |
WO2010062919A1 (en) * | 2008-11-26 | 2010-06-03 | Halozyme, Inc. | Device and methods for subcutaneous delivery of high viscosity fluids |
WO2011073796A3 (en) * | 2009-12-16 | 2011-08-11 | Chrontech Pharma Ab | Codon-optimzed hepatitis b virus core antigen (hbcag) |
US20110238037A1 (en) * | 2010-03-19 | 2011-09-29 | Chorng-Fure Robin Hwang | Gas-pressured medication delivery device |
US8551071B2 (en) | 2010-03-19 | 2013-10-08 | Halozyme, Inc. | Gas-pressured medication delivery device |
US9457183B2 (en) | 2011-06-15 | 2016-10-04 | Tripep Ab | Injection needle and device |
Also Published As
Publication number | Publication date |
---|---|
GB2427562B (en) | 2008-12-03 |
WO2005072810A1 (en) | 2005-08-11 |
CA2553454A1 (en) | 2005-08-11 |
GB2427562A (en) | 2007-01-03 |
GB0614032D0 (en) | 2006-08-30 |
US7150726B2 (en) | 2006-12-19 |
CA2553454C (en) | 2012-11-06 |
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